A combination of photos show Virgin Galactic SpaceShipTwo as it detaches from the jet airplane that carried it aloft and then exploding over the skies of the Mojave Desert
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Virgin Galactic crash: Inquiry team lands in Mojave

US officials have started to investigate why a Virgin Galactic space rocket crashed over California's Mojave desert on a test flight.

One pilot died and the other was badly injured when SpaceShipTwo exploded shortly after take-off on Friday.

A National Transportation Safety Board team arrived in Mojave on Saturday and was heading to the crash site.

Virgin chief Sir Richard Branson said he was "determined to find out what went wrong" and learn from the tragedy.

David Willis reports.

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